0N/A/*
2362N/A * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A * @test
0N/A * @bug 4431020
0N/A * @summary On Windows 2000 we observed behaviour that reflects the underlying
0N/A * implementation :-
0N/A * 1. PortUnreachableException throw per underlying reset
0N/A * 2. No PUE throw for DatagramSocket.send
0N/A */
0N/Aimport java.net.*;
0N/A
0N/Apublic class Concurrent implements Runnable {
0N/A
0N/A DatagramSocket s;
0N/A
0N/A public void run() {
0N/A try {
0N/A byte b[] = new byte[512];
0N/A DatagramPacket p = new DatagramPacket(b, b.length);
0N/A
0N/A int pue_count = 0;
0N/A while (true) {
0N/A try {
0N/A System.out.println("receive...");
0N/A s.receive(p);
0N/A } catch (PortUnreachableException pue) {
0N/A System.out.println("receive threw PortUnreachableException");
0N/A pue_count++;
0N/A }
0N/A System.out.println("receiver sleeping");
0N/A Thread.currentThread().sleep(100*pue_count);
0N/A }
0N/A
0N/A } catch (Exception e) { }
0N/A }
0N/A
0N/A Concurrent(InetAddress ia, int port) throws Exception {
0N/A
0N/A System.out.println("");
0N/A System.out.println("***");
0N/A System.out.println("Test Description:");
0N/A System.out.println(" - Block reader thread on receive");
0N/A System.out.println(" - Send datagrams to bad destination with wee pauses");
0N/A System.out.println(" - Observe which thread gets the PUE");
0N/A System.out.println("");
0N/A
0N/A /*
0N/A * Create the datagram and connect it to destination
0N/A */
0N/A s = new DatagramSocket();
0N/A s.connect(ia, port);
0N/A s.setSoTimeout(60000);
0N/A
0N/A /*
0N/A * Start the reader thread
0N/A */
0N/A Thread thr = new Thread(this);
0N/A thr.start();
0N/A Thread.currentThread().sleep(2000);
0N/A
0N/A byte b[] = new byte[512];
0N/A DatagramPacket p = new DatagramPacket(b, b.length);
0N/A
0N/A /*
0N/A * Send a bunch of packets to the destination
0N/A */
0N/A for (int i=0; i<10; i++) {
0N/A try {
0N/A System.out.println("Sending...");
0N/A s.send(p);
0N/A } catch (PortUnreachableException e) {
0N/A System.out.println("send threw PortUnreachableException");
0N/A }
0N/A Thread.currentThread().sleep(100);
0N/A }
0N/A
0N/A /*
0N/A * Give time for ICMP port unreachables to return
0N/A */
0N/A Thread.currentThread().sleep(5000);
0N/A
0N/A s.close();
0N/A }
0N/A
0N/A
0N/A public static void main(String args[]) throws Exception {
0N/A
0N/A InetAddress ia;
0N/A int port;
0N/A if (args.length >= 2) {
0N/A ia = InetAddress.getByName(args[0]);
0N/A port = Integer.parseInt(args[1]);
0N/A } else {
0N/A ia = InetAddress.getLocalHost();
0N/A DatagramSocket s1 = new DatagramSocket();
0N/A port = s1.getLocalPort();
0N/A s1.close();
0N/A }
0N/A
0N/A new Concurrent(ia, port);
0N/A }
0N/A
0N/A}